OpenStax, Contemporary Mathematics §1.2 Subsets · Example 5 · Combinatorics · Sets & logic

Subsets · Example 5

Using natural numbers, multiples of 3 are given by the sequence $3, 6, 9, \dots$ . Write this set using set builder notation by expressing each multiple of 3 using a formula in terms of a natural number, $n$ .

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OpenStax, Contemporary Mathematics · §1.2 Subsets · Example 5

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